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MQSeries.net Forum Index » IBM MQ Installation/Configuration Support » Need Clarification-MQ Queue Manager

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fschofer
PostPosted: Fri Nov 25, 2005 12:10 am    Post subject: Reply with quote

Knight

Joined: 02 Jul 2001
Posts: 524
Location: Mainz, Germany

Hi,
Quote:
I succeeded to put and get 8000 persistent messages per second.
It's all about how you are doing your tunning !!!

Paul Clarke has shown some tricks on the last IBM European WebSphere Technical Conference
which also showed very fast performance numbers.

He used his windows thinkpad for this and his explanation was that windows is simply lying.
So far i remember it has something to do with the write cache of his ide harddisk.

Greetings
Frank
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hopsala
PostPosted: Sun Nov 27, 2005 3:26 am    Post subject: Reply with quote

Guardian

Joined: 24 Sep 2004
Posts: 960

ramesh.govindaswamy wrote:
please let me kow what I have to do in order to increase the performance.

How about reading the link I gave you a few days back?
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hopsala
PostPosted: Sun Nov 27, 2005 3:38 am    Post subject: Reply with quote

Guardian

Joined: 24 Sep 2004
Posts: 960

mqadmin wrote:
There is also a way to config the disks according to the message length which imporves the I/O.

Elaborate! i'm on the edge of my seat here
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fjb_saper
PostPosted: Sun Nov 27, 2005 10:55 pm    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

mqadmin wrote:
hopsala wrote:
mqadmin wrote:
There is also a way to config the disks according to the message length which imporves the I/O.

Elaborate! i'm on the edge of my seat here


If you are using EMC Discs, you can format the disk according to the fixed message legth, so it will be optimized for that length.
Another way is to put discs with bigger cache.


Disc cache size matters only if the starting size of the cache is less than the size of the in flight messages. If you cannot make the final cache size as big as the inflight messages (queue + log ) you are back to raw disk speed.
With inflight I have an extended definition in mind here: from put to get.

Enjoy
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